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Coolant sight glass.


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Hi everyone...another small problem....lol. I have come to the conclusion that RVs are always going to require hands on repairs and maintenance on an almost daily basis.


Anyhow the problem.......on my coolant tank there is a plastic sight glass that will show me the coolant and thereby inform me that there is indeed coolant in the tank. This darn sight glass keeps working loose and seeping and as a result I lose coolant gradually. I have tightened this sight glass at least 5 times now and even replaced the O-ring but it still works its way loose. Has anyone else here experienced this? I am contemplating using a type of thread locker on it ...just want to make sure that the threadlocker will not destroy this plastic sight glass. Anyone?

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